Killing suspect Oscar Pistorius is a flight risk and should not be granted bail, South African police argued in court Wednesday.

Pistorius is charged with premeditated murder for the Valentine’s Day shooting death of girlfriend Reeva Steenkamp with a 9 mm pistol.

Pistorius asserted in a court affidavit Tuesday that the shooting was accidental and he thought the model was an intruder in his home.

Police officer Hilton Botha said in the star athlete’s bail hearing Wednesday that Pistorius illegally possessed .38-caliber ammunition in a safe in his bedroom. The policeman testified that Pistorius did not have a license for a .38-caliber weapon and consequently possession of that ammunition was illegal.